Unable to access the response from the success callback

Question

this is my function in backbone.js

var formdata = {
  name : this.$('#name').val(),
  email : this.$('#email').val()
};

this.collection.create(formdata, {
  wait : true,
  success : function(model, res) {
    var id = model.get('id');
  }
});

When I use console.log(id) inside the success function it's been displayed. But I can't access outside of the success function.

Does anyone got the answer..

Also see the additional explanation in the answer to this: http://stackoverflow.com/questions/13301050/js-global-variable-not-being-set-on-first-iteration/13301270#13301270 — slebetman, Jul 02 '13 at 08:04

score 0 · Answer 1 · answered Jul 02 '13 at 07:22

0

success is the closer function and you have defined id inside the function itself (var id), so by rule the variable scope is limited to success function.

try defining id outside of closer and assigned it in closer. Also assignment will be done when success is executed(asynchronous) i.e once get the response from server.

answered Jul 02 '13 at 07:22

Naren Sisodiya

7,158
2
24
35

I have replaced the var id with this.id but still not working.. – user1587365 Jul 02 '13 at 07:43

score 0 · Answer 2 · answered Jul 02 '13 at 09:42

0

You can't access it because it's not set yet. The code executes before the saving has taken place. That's why you use callbacks

answered Jul 02 '13 at 09:42

David Fregoli

3,377
1
19
40

Unable to access the response from the success callback

2 Answers2